Ch. 3 REVIEW The Atom: From Idea to Theory The Structure of the Atom Counting Atoms.
Today You will need a calculator! Go get it. Counting Atoms.
-
Upload
june-gregory -
Category
Documents
-
view
212 -
download
0
Transcript of Today You will need a calculator! Go get it. Counting Atoms.
![Page 1: Today You will need a calculator! Go get it. Counting Atoms.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bfdb1a28abf838cb05c2/html5/thumbnails/1.jpg)
Today
You will need a calculator! Go get it
![Page 2: Today You will need a calculator! Go get it. Counting Atoms.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bfdb1a28abf838cb05c2/html5/thumbnails/2.jpg)
Counting Atoms
![Page 3: Today You will need a calculator! Go get it. Counting Atoms.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bfdb1a28abf838cb05c2/html5/thumbnails/3.jpg)
What are some ways that we make it easier to count groups of things?
![Page 4: Today You will need a calculator! Go get it. Counting Atoms.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bfdb1a28abf838cb05c2/html5/thumbnails/4.jpg)
Atoms and molecules are tiny...Counting groups is a pain in the back.
18 grams of water contain 602 000 000 000 000 000 000 000 molecules (more or less...)
How can we make this easier?
![Page 5: Today You will need a calculator! Go get it. Counting Atoms.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bfdb1a28abf838cb05c2/html5/thumbnails/5.jpg)
1 mole = 6.023 x 1023 items
![Page 6: Today You will need a calculator! Go get it. Counting Atoms.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bfdb1a28abf838cb05c2/html5/thumbnails/6.jpg)
We still don’t want to count the things!
The mass of one mole is the MOLAR MASS
1 mole of iron = 602 000 000 000
000 000 000 000 atoms= 55.85 grams
![Page 7: Today You will need a calculator! Go get it. Counting Atoms.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bfdb1a28abf838cb05c2/html5/thumbnails/7.jpg)
Posters around the room...Lists of Elements and Compounds,
with their Molar MassI did NOT give any hint as to how I
found the molar mass.You know how to look up mass on
the periodic table for each atom.You have 5 minutes to look at the
posters and figure out what you would need to do.
![Page 8: Today You will need a calculator! Go get it. Counting Atoms.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bfdb1a28abf838cb05c2/html5/thumbnails/8.jpg)
Oxygen O2
32.00 grams/mole
![Page 9: Today You will need a calculator! Go get it. Counting Atoms.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bfdb1a28abf838cb05c2/html5/thumbnails/9.jpg)
Water H2O
18.02 grams/mole
![Page 10: Today You will need a calculator! Go get it. Counting Atoms.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bfdb1a28abf838cb05c2/html5/thumbnails/10.jpg)
Calcium chlorideCaCl2
110.98 grams/mole
![Page 11: Today You will need a calculator! Go get it. Counting Atoms.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bfdb1a28abf838cb05c2/html5/thumbnails/11.jpg)
Sodium chlorideNaCl
58.44 grams/mole
![Page 12: Today You will need a calculator! Go get it. Counting Atoms.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bfdb1a28abf838cb05c2/html5/thumbnails/12.jpg)
Fluorine gasF2
38.00 grams/mole
![Page 13: Today You will need a calculator! Go get it. Counting Atoms.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bfdb1a28abf838cb05c2/html5/thumbnails/13.jpg)
Sulfur S8
256.56 grams/mole
![Page 14: Today You will need a calculator! Go get it. Counting Atoms.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bfdb1a28abf838cb05c2/html5/thumbnails/14.jpg)
Baking SodaNaHCO3
56.54 grams/mole
![Page 15: Today You will need a calculator! Go get it. Counting Atoms.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bfdb1a28abf838cb05c2/html5/thumbnails/15.jpg)
Potassium permanganate
KMnO4
158.04 grams/mole
![Page 16: Today You will need a calculator! Go get it. Counting Atoms.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bfdb1a28abf838cb05c2/html5/thumbnails/16.jpg)
It seemed that...